Modeling the Performance of an Algebraic Multigrid Cycle Using Hybrid MPI/OpenMP
Conference
·
· 2012 41st International Conference on Parallel Processing; 10-13 Sept. 2012; Pittsburgh, PA, USA
The rise of multicore cluster architectures has led to intense interest in using a combination of MPI and OpenMP to more effectively program these machines. We present a performance model for hybrid implementation of the solve cycle of algebraic multigrid (AMG), a popular iterative solver for large sparse linear systems and a key component of many scientific simulations. We validate the model on two leading parallel platforms, and discuss implications for applications programmed in a hybrid model on future machines.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
- Sponsoring Organization:
- USDOE Office of Science; USDOE
- OSTI ID:
- 1567579
- Conference Information:
- Journal Name: 2012 41st International Conference on Parallel Processing; 10-13 Sept. 2012; Pittsburgh, PA, USA
- Country of Publication:
- United States
- Language:
- English
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